Installation and operation manual
38
10T8Y1B
VRV-W IV System Air Conditioner
4P399208-1 – 2015.01
Mild
Overshoot (during heating operation) or undershoot (during
cooling operation) is allowed compared to the requested
refrigerant temperature, in order to achieve the required room
temperature very fast. The overshoot is not allowed from the
start up moment. The start up occurs under the condition which
is defined by the operation mode above.
In case of cooling operation the evaporating temperature is
allowed to go down to 6°C on temporary base depending on the
situation.
In case of heating operation the condense temperature is
allowed to go up to 46°C on temporary base depending on the
situation.
When the request from the indoor units becomes more
moderate, the system will eventually go to the steady state
condition which is defined by the operation method above.
The start up condition is different from the powerful and quick
comfort setting.
To activate the mild comfort setting under cooling operation,
change field setting [2-51]=1.
This setting is used in conjunction with setting [2-8].
To activate the mild comfort setting under heating operation,
change field setting [2-52]=1.
This setting is used in conjunction with setting [2-9].
Eco
The original refrigerant temperature target, which is defined by
the operation method (see above) is kept without any correction,
unless for protection control.
To activate the mild comfort setting under cooling operation,
change field setting [2-51]=0.
This setting is used in conjunction with setting [2-8].
To activate the mild comfort setting under heating operation,
change field setting [2-52]=0.
This setting is used in conjunction with setting [2-9].
